Extending The Length Of A Door

This is the size of the gap but not the size of the extra piece you are going to need.
Extending the length of a door. Measure where the door meets the floor when it is closed. Carefully cut off the door at the pencil mark to get a clean square edge. Draw vertical lines on one wall with a straightedge and pencil that are 6 inches or more from each outer edge of the door opening. Check all the way across in case one area is uneven in measurement.
If there is carpet flooring remove a 1 4 inch space from the total measurement for easement from the carpet to the door bottom. To seal out weather insects and dirt it is important to properly size your door. Measure the distance between the bottom of the door and the floor. The filler piece will be 1 1 2 in.
Years ago we removed all the carpeting in the house. Remove the door by pulling out the hinge pins and lay it on a pair of padded sawhorses. How to fix a too short door. Make sure the door is closed and take out the measuring tape.
Now we have a big gap from door to floor. Up from the floor at the high spot. When you can see daylight under your door it is not the right size and needs to be. Clearance under the door.
Tall and you ll want at least 1 2 in. The lines should extend from the floor to the ceiling. Any way to extend the length of the door replacing all the doors in the house would be to expensive.